CSSgram

Instagram filter library in Sass and CSS.

What is This?

Simply put, CSSgram is a library for editing your images with Instagram-like filters directly in CSS. What we’re doing here is adding filters to the images as well as applying color and/or gradient overlays via various blending techniques to mimic these effects. This means less manual image processing and more fun filter effects on the web!

We are using pseudo-elements (i.e. ::before and ::after) to create the filter effects, so you must apply these filters on a containing element (i.e. not a replaced element like <img>). The recommendation is to wrap your images in a <figure> tag. More about the tag here.

Browser Support

This library uses CSS Filters and CSS Blend Modes. These features are supported in the following browsers:

43+ ✔	38+ ✔	Nope ✘	32+ ✔	8+ ✔

For more information, check on Can I Use.

Usage

There are currently 2 ways to consume this library:

Use CSS classes

When using CSS classes, you can simply add the class with the filter name to the element containing your image.

1. Include the CDN link in your tag:

• Alternatively, you can download the CSSgram library locally and link to the it within your project: ``
• Add a class to your image element with the name of the filter you would like to use

For example:

<figure class="aden">
  <img src="../img.png">
</figure>

Alternatively, you can just download and link to any individual css file (e.g. ``), if you’re just using one of the styles.

Available Classes

For use in HTML markup:

• Aden: class="aden"
• Reyes: class="reyes"
• Perpetua: class="perpetua"
• Inkwell: class="inkwell"
• Toaster: class="toaster"
• Walden: class="walden"
• Hudson: class="hudson"
• Gingham: class="gingham"
• Mayfair: class="mayfair"
• Lo-fi: class="lofi"
• X-Pro II: class="xpro2"
• 1977: class="_1977"
• Brooklyn: class="brooklyn"
• Nashville: class="nashville"

Use Sass @extend

If you use custom naming in your CSS architecture, you can add the .scss files for the provided styles within your project and then @extend the filter effects within your style definitions. If you think extends are stupid, I will fight you 😊.

1. Download the scss/ folder contents

• Include a link to scss/cssgram.scss via an @import statement in your Sass manifest file (i.e. main.scss). It may look like: @import 'vendor/cssgram'
• Extend the placeholder selector (e.g. @extend %aden) in your element.

For example:

<figure class="viz--beautiful">
  <img src="../img.png">
</figure>

// Sass
.viz--beautiful {
  @extend %aden;
}

Alternatively, you can just download and link any individual .scss file in your Sass manifest (i.e. scss/aden.scss), if you're just using one of the styles.

Available Placeholders

For use in Sass stylesheets:

• Aden: @extend %aden
• Reyes: @extend %reyes
• Perpetua: @extend %perpetua
• Inkwell: @extend %inkwell
• Toaster: @extend %toaster
• Walden: @extend %walden
• Hudson: @extend %hudson
• Gingham: @extend %gingham
• Mayfair: @extend %mayfair
• Lo-fi: @extend %lofi
• X-Pro II: @extend %xpro2
• 1977: @extend %_1977
• Brooklyn: @extend %brooklyn
• Nashville: @extend %nashville

Contributing

Either:

1. Create an issue

Or:

1. Fork this repository
2. Clone the fork onto your system
3. npm install dependencies (must have Node installed)
4. Run gulp to compile CSS and the test site
5. Make changes and check the test site with your changes (see file structure outline below)
6. Submit a PR referencing the issue with a smile 😄

If you’d like to contribute, the following filters are yet to be added:

• [ ] Charmes
• [ ] Stinsen
• [ ] Kelvin
• [ ] Sutro
• [ ] Hefe
• [ ] Valencia
• [ ] Rise
• [ ] Sierra
• [ ] Amaro
• [ ] Crema

Filters are really fun to create! Reference photos created by Miles Croxford can be found here.

File Structure Outline

• source/css/cssgram.css contains each of the CSS classes you can apply to your <img> to give it the filter. You should use source/css/cssgram.min.css for production if you want access to all of the library
• source/scss/ contains the source files for individual classes and placeholder selectors you can use to extend CSS classes in Sass
• site/ is the public facing website
• site/test is how you test filters if you're developing, remember to change is_done for the filter you're creating in site/test/index.twig whilst gulp is running.

Note: this will also have mixin options and a PostCSS Component.